TFT-LCD array substrate and methods for manufacturing and testing same

A technology of array substrates and testing methods, which is applied in semiconductor/solid-state device manufacturing, instruments, semiconductor devices, etc., and can solve problems such as inability to test signals in liquid crystal panels

Active Publication Date: 2009-10-14
K TRONICS (SUZHOU) TECH CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a TFT-LCD array substrate and its manufacturing method and testing method. By adding test lines and joint points, it can effectively solve the technical defect that the existing technology cannot test the signals in the liquid crystal panel.

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  • TFT-LCD array substrate and methods for manufacturing and testing same
  • TFT-LCD array substrate and methods for manufacturing and testing same
  • TFT-LCD array substrate and methods for manufacturing and testing same

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Embodiment Construction

[0044] figure 1 It is a structural schematic diagram of the TFT-LCD array substrate of the present invention, such as figure 1 As shown, a display area 1 and a peripheral area 2 are formed on the TFT-LCD array substrate of the present invention. The peripheral area 2 is located at the periphery of the display area 1. Several gate lines 3 and data lines 4 are formed in the display area 1. The peripheral area 2 forms There is test line 6 and junction 7. The data line 4 is perpendicular to the gate line 3, pixel electrodes are arranged in the area enclosed by the gate line 3 and the data line 4, and a thin film transistor (hereinafter referred to as TFT) is formed at the intersection of the gate line 3 and the data line 4 . The TFT is composed of a gate electrode, a gate insulating layer, an active layer, a source electrode, a drain electrode and a passivation layer. The gate electrode is connected to the gate line 3, the source electrode is connected to the data line 4, and the...

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Abstract

The invention relates to a TFT-LCD array substrate and methods for manufacturing and testing the same. The TFT-LCD array substrate comprises a display area and a peripheral area, wherein the display area is internally provided with a grid line and a data line, and the peripheral area is internally provided with a test line and a binding point for connecting the test line with the grid line and/or connecting the test line with the data line. The method for testing the TFT-LCD array substrate comprises the following steps: connecting a signal line to be tested with the test line at the binding point in a laser welding way, and testing the signal line to be tested through the test line. Because the test line and the binding point are formed in the peripheral area, and the signal line to be tested is connected with the test line at the binding point in a laser welding way in the TFT-LCD array substrate testing process, a signal on the signal line can be tested, the test and analysis way of the liquid crystal panel can be strengthened and the comprehensive analysis ability of a TFT-LCD is improved.

Description

technical field [0001] The invention relates to a liquid crystal display device and its manufacturing method and testing method, in particular to a TFT-LCD array substrate and its manufacturing method and testing method. Background technique [0002] The main structure of a Thin Film Transistor Liquid Crystal Display (TFT-LCD) includes a liquid crystal panel, a backlight source and a driving circuit board. The liquid crystal panel consists of an array substrate, a color filter substrate and a liquid crystal layer disposed therebetween. The liquid crystal panel is a unity of opto-mechanical and electrical. Its basic principle is to use the electric field between the array substrate and the color filter substrate to control the deflection of liquid crystal molecules, so that it produces different transmitted light under different electric fields. As a unified whole, it can be considered that the liquid crystal panel is the load of the driving circuit, and the liquid crystal mo...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02F1/13G02F1/1362H01L27/12H01L21/84
Inventor 张弥彭志龙
Owner K TRONICS (SUZHOU) TECH CO LTD
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